Carbureter.



YA. OST L ER. 0ARBURITER.' APPLICATION FILED D110. 20, 1907. 1,051,440. Patented Jan. '23, 1913.

3 SHEET SBHEBT 1.

WITNESSES INVENTOR A. OSTLERQ.

GARBURETER.

APPLIOATIO N FILED DBO. 20, 1907.

1 ,05 1 ,440. Patented Jan. 28, 191-3.

3 BHEET8-BHEET 2.

Jim/E8858 INVENTOR m- Wm m. IZMu M A TTORNEY.

A. OSTLER.

omnuamnn. Arimux'non'runn no. no, 1907.

1,051,440. Patented Jam 28, 1913.

3 SHEETS-SHEET 3.

ITNESSES INVENTOH 4 wzw W W ,4 TTOHNEY.

UNITED STATES P1 & T1ENT OFFICE.

ALEXANDER OSTLER, OF NEWARK, NEW JERSEY, ASSIGNOR TO HYDRO-CARBON MACHINE COMPANY, A CORPORATION OF NEW JERSEY.

cARBUnETEn.

Specification of Letters Patent.

Patented Jan. 28, 1913.

Application filed December 20, 1907. Serial No. 407,292.

which the following is a specification.

The objects of thisinventlon are to pro- 'vide in a carburetor a direct flow of fuel instead of through a float chamber; to secure a downward flow of the said fuel supply, by gravity; to provide means for admitting said fuel supply Whichmeans are governed by the intake of air, and to enable such admission of fuel to be regulated at will; to secure great safety, in that the fuel supply is never exposed; to secure a-uniform mixture at all speeds; td provide a thrpttle by which the mixture can be d1- lutd-independent of the vaporization of the fuel; to provide a construction adapted to be operated by a single lever; to, avoid the necessity of priming; to obtain economy of fuel, and to enable either gas or liquid to be employed; to secure a simple and com I pact construction, one that shall be durable and having all its parts readily accessible,

and to obtain other advantages and results as may be brought out in'the following descriptlon.

Referring to .the accompanying drawings, in which like numerals of reference indicate the same arts in the several figures, Figure 1 is a si e elevation of my improved carbnreter with the throttle open, and showing in dotted lines the throttle lever in closed position; F iga -2 isan end elevation of the earbureter, partly in section and illustrating a modified form of diaphragm spring; Fig. 3 is a central vertical longitudinal section of the carburetor, certain connections between the throttle lever and fuel valve stop being omitted for greater clearness;

Fig. 4 is a section taken centrall through the throttle, as on line (1;, Fi 3, looking in the direction indicated by t e arrow, with certain mixing wings removed from the shaft thereof for greater clearness; Fig. 5 is a perspectit? view of the throttle detached; Fig.'.6 is a givertical central section of the lower? part ofthe carbureter, showing a modified form of the dia hra In; Fig. 7 illustrates in section a s igh' y mod fied vaporizing tube; Fig. 8 is a detail perspecr' tive view of the throttle shaft with its mix-' ing wings thereon, and Fig. 9 is a plan of the carburetor.

. In said drawings, 1 indicates an elbow-- shaped body portlon which is tubular and adapted to be connected at its end 2 to a gas engine; the other end of the body portion is open, and preferably flared-as at 3 for the intake of air, said air passing through the body portion in the direction indicated by the arrows. Said body portion 1 is preferably disposed with its said open end vertically downward, and on the top of the body portion, in central alinementwith said open end, is a boss 4 threaded at its upper part to receive a cap 5. The hollow interior of this boss 4 has an inward and downward cuplike extension formed by walls 7 cast integral with the body portion, and the entire chamber 6 thus formed is for the fuel, which may be gasolene, kerosene, denatured alcohol, or the like, a lateral pipe 8 leading from the side of said chamber for the inlet of said fuel from a supply tank (not shown). The lower end of said chamber 6 lies approximately in the central line of the discharge" end 2 of the carburcter, and its walls are exteriorly threaded to receive a vaporizing tube 9 which extends downward substantially in central alinement with the intake end 3 of the carbureter, and has perforations 10 and 11 in its walls.

In the floor of the fuel chamber 6 is an aperture 12 for the passage of the fuel, and which aperture provides a seat for a conical valve 13 adapted to seat downwardly. The said valve 13 has a stem 14 which passes through the vaporizing tube 9 and in the open end 3 of the carbureter carries a diahragm 15. Said diaphragm in its preerred'form comprises a disk adjustably fast upon the said stem 14, as by clamping between nuts 16, 17, screwed on the threaded end of the stem. This diaphragm is adapted to be moved by the suction of air through the carbureter caused by the engine, and to open the valve 13 sufiiciently to allow fuel to escape into the vaporizin tube 9, either intermittently or continuous y. Preferably a limit is provided for the .npward movement'o'f the valve 13 by an jection 22,

adjustable stop 18 which screws centrally through the cap 5 of the fuel chamber, said stop having at its outer end a finger piece 19 and being surrounded at the top of the cap by a stufling box 20. The lower end 21 of said stop lies adjacent to a projection 22 on the top of the valve 13, so as to be enga ed thereby if the valve moves upward su ciently. Thus by screwing the stop 18 in or out, regulation of the movement of the valve 13 may be'hadas to extent of opening, and a limit of fuel flow established.

Furthermore, a flange or shoulder 23 is provided on thestop' 18 back from its end 21,

so that a spiral sprmg'24may be placed on the meetin ends of't e stop and'valve protween said shoulder 23 and the valve itself. This aids'in the closing of the valve, and secures a more positiveand uniform action, particularly if the carbu- 'reter or engine to which it is attached is jolted, as in automobiles. Obviously, instead of placing the spring '24 as above described, a spiral spring 25 could be arranged on the stem 14 between the lower end of the vaporizing tube 9 and the diaphragm 15 or its upper clamping nut 16, as shown in Fig. 2 of the drawings.

In operation, it will be understood that when the engine is running light, vibratory up and down movements of the diaphragm 1 lift the valve 9 and intermittently admit fuel, and at the same time sufiicient air passes upward around the edges of the diaphragm to vaporize the said fuel. Preferably, a deflecting plate 26 is arranged in the body portion of the carbureter close to the inlet end 3 and at the inner side of the elbow-bend, as shown, to prevent the entering current of air from assing directly. to the discharge end 2, and to compel it to come in contact with the vaporizin tube.

In case, however, the suction should e suf-' ficiently great to hold the valve 13 open to such an extent that the admission of air at the intake-end 3 was not enough to vaporize.

the fuel entering tube 9, I provide'm the body portion 1 directly opposite its end 2, an auxiliary air inlet which may be'of any suitable and well-known type adapted to open automatically inward. As shown for purposes of illustration, said auxiliary valve comprises a ring 27 screwing into a threaded boss 28 of the body portion and formin'g at its inner end a valve seat 29; ,avalve 30 is provided for said-seat, havinga stem 31, which extends slidably outward through a central bearing 32 of the ring, supported by radial arms 33, and a spiral spring 34 on 'said stem between its bearing 32 and a nut 35 adjustably screwed on its outer end norinally holds said valve seated; In connection with this auxiliary air inlet, the adjacent openings 10 in the vaporizing tube are made larger than the others 11, and under some conditions, if desired, that side of the vaporizing tube may be provided with a longitudinal slot 36 a's shown in Fig. 7 for the more free admission of air.

In the tubular discharge end 2 of the carbureter, is a throttle 40 comprising a cylinder mounted transversely in bearings 41 formed by boring through the tubular end of the carbureter from side to side. This cylindrical throttle is hollow with end walls 42, 42, and a central shaft 43 on which it is .fast for purpose of turning, the outer end of said shaft being provided with a crank lever 44, to which an operating rod 45 may be connected, as shown. The cylindrical throttle has in its side walls main openings 39, .39, which'are preferably opp0s1te, and closed by being covered by the bearings of the throttle when it is turned, as will be understood. In the end walls 42 of the throttle,

are also auxiliary openings 46 which are adapted .to pass into or out of registration with correspondin openings 47 in plates 48 secured to the b y portion 1' of the carbureter and lying fiatwise against the end walls of the throttle. These plates 48 are preferably held by screws 49 passing through slots 50 curved on a, circle whose center is the center of the plates, and whereby the position of the openings 47 in the plates may be varied with respect to the openings 46 in the throttle, and the extent or time of registration of said openings accordin ly varied. In ordinary practice, the

said p ates 48 will be adjusted so that the I openings coincide when the throttle is nearly open, thus furnishing additional air to the mixture when the en in e is running at high speed and accordingl amount of fuel. I have shown such an adjustment in the drawings, but of course itcould be changed, or made exactly opposite to admit additional air when the engine was neously withdrawn to permit the fuel yalve 13 to open further and admit an increased supply. To do this,-the link 52' is preferably slotted, as at 54 to receive the pin of the crank lever 44, so as toallow some independent movement of the throttle, land not affect the fuel supply until the throttle is almost entirely opened,.as shown. a In a y taking a maximum 7 closed 'position of the throttle lever 44, as

shown dotted, or in any partly closed posi- 'tion'of' the throttle, obviously there will be nothing to prevent a spring 55 closing the body portion with a valve seatin the wall thereofea valve in said seat haying a stem extending centrally and lon'tudinally of 1 the open-ended arm of the body portion, a I

diaphragm mounted transversely in said open-en ed arm and; adapted to be moved by the inrush of -air and transmit' its movements to said valve stem, a vaporizin tube secured to the fuel chamber and inc osing said valve stem and having in its walls perforations some .of which rm oppositely away from the attaching ,end of the body portion, and an automatic inwardly openlng air valve in the wall of the body portion on the opposite side of the said va orizing 80 tube from the attaching end of t e body portion.

4. In a carbureter, the combination of an elbowshaped body rtion having one end open to the atmosp ere and the other endl adapted to be attached -to a-gas engine and providing a tubular passage, aefue l chamber projecting into said body portion of the bend thereof and havingan aperture in its walls forming a valve seat, a valve for said valve 90 seat having a stem projecting into' the intake end of the body portion, a diaphra? at said intake end adapted to be moved y 'the inrush of air and to transmit its movements to the valve stem, a stop screwin 95 through outer wall of the fuel chamber an adapted at its inner end to engage the said valve, an arm upon said stop outside the bod portion, a spring normally holding 'sai arm in a predetermined position, a 100 cylindrical throttle mounted transversely in the discharge end of the body portion and having an axial shaft projecting outside the .body portion, a crank lever on said shaft,

and a connecting rod pivoted to the said 5 arm on the screw stop and having a longitudinal slot receiving a pin on the said crank lever, whereby said crank lever moves independent of the said am to a certain stop 18 by bringing the arm 53 back a inst a stop 56 on the carbumter body 1. '0 secure greater accuracy and means of adjustment, a screw 57 is threaded through the closedlend of the slot 54,10 form at its inner end a contact point for the crank lever pin, and which point of contact can thus be adjusted with 'respect to the slotted. link 52. Notwithstanding these connections thus described, by loosening the set screw 58 which clam s the arm 53 on the stop 18, inde endent a justment thereof can be had by t e finger piece 19.

It should be noted that by my, improved construction of carbureter, gases, such as acetylene gas, illuminating gas, or the like, can be employed for fuel, as well as liquids, and properly mixed and fed to the engine.

' Having thus described the invention, what 2 I claim as new is:

1 In acarbureter, the combination of an elbow-shaped body portion having one en open to the atmosphere, a reentrant fuel I c amber at the bend of said body portion with a valve'seat in the wall thereof, a valve in said seat having a stem extending centrally and lon 'tudinally of the open-ended arm of the ody portion, a diaphragm mounted transversely in said open-en ed arm and adapted to be moved by the inrush of air and transmit its movement to said valve stem, a deflector arranged on the interior of the elbow shaped body portion on the opposite side of the bend from said fuel chamber and adjacent to the said open end thereof, and an auxiliary-air inlet in the wall of thebody portion on the opposite side of said fuel chamber from the attaching end of the body portion.

2. In a carbureter, the combination of an elbow-shaped body portion having one end open to the atmosphere and the other end adapted to be attached to a pipe or the-like a rentrant fuel chamber at the bend of said body portion with ,a valve seat in the wall thereof, a valve in said seat having a stem extending centrally and longitudinally of the open-ended arm of the bod portion, a diaphragm mounted transversey in said open-ended arm and adapted to be moved by the inrush of air and transmit its move ments to said valve stem, a vaporizin tube secured to the fuel chamber and inc osing .said valve stem and having in its walls 56 perforations some of which face oppositely away from the attaching end of the body the fuel chamber having an n ward pro ecortion, and an auxiliary air inlet in the tion and a stem extending ongitu mally 'wall of the body portion on the opposite side through the vaporizing tube, a diaphragm of the said vaporizing tube from the atfixed on said stem and lying transversely 60 taching end of the bod portion. of the open-ended arm of the body portion, 125 3. In a carbureter, t e combination of an a screw stop extending through the cap elbow-sha ed body ortion having one end of the fuel chambeiga spripg normally seatopen to t e atmosp ere and the other end ing the said valve, an auxiliary air inlet in adaptedto be attachedto a pipe or the like, the wall of the body portion eppositc the a rentrant fuel chamber at the bend of said attaching end of the body portion, a cyhn- 130 5. In a carbureter,the combination of an elbow-shaped body portion having one end adapted to be attached to a gas engine and the other end open to the atmosphere and extending downwardly, a fuel chamber at the top of said body portion projectin'gminto the interior thereof in'alinement wit the open end, a cap for said fuel chamber, a vaporizing tube secured to the inner end 0 extent and then actuates the arm. 110.

said fuel chamber, a valve in the floor of drieal throttle adapted to rotate in the at taching arm of the bodyport-inn having main openings in its opposite sides and auxmeans connecting said throttle with the said screw step for theifuel chamber valve.

iliury openings in its ends, adjugtzpble plates ALEXANDER QSTLER. 5 mounted 111 011 opposite sides of tLe body In the presence ofiportion havl apertures adapted in register FREDERICK GERMAsmJ 12.,

with the sa' auxiliary' openings of the! ETHEL Be REED.-

throttle; means for turning said throttle, and

min of this patent may beobtained for five cents each; by addicssing the Commissioner of 1 atents;-

Washington, D. t." 

